Britton...to date, just recently THIS YEAR, a 1982D small date copper cent was found AND certified. It has been the ONLY one found to date, it was previously deemed not possible, but the first was found...out of 42 BILLION! It may just be a fluke, or there may be more, that's how RARE it is. Know your weights, zinc=@2.5gr, copper=@3.11gr within a .13g +/- tolerance.
There's a high $ 1982P small date zinc
DDR, and some very minorDDR/DDOs too, not worth but a few bucks.